Philip j



(No Model.)

KILN.

No. 481,562. Patented Aug. 30, 1892.

1 0/ FIGZ.

\\ x B A k i K r C B WITNESSES.

XWnfii UNITED STATES PATENT OFFICE.

PHILIP J. HANDEL, OF MERIDEN, CONNECTICUT.

KILN.

SPECIFICATION forming part of Letters Patent No. 481,562, dated August 30, 1892.

Application filed November 18, 1891. Serial No. 412,277. (No model.)

To all whom it may concern.-

Be it known that I, PHILIP J. I-IANDEL, a citizen of the United States, residing at Meriden, in the county of New Haven and State of Connecticut, have invented certain new and useful Improvements in Kilns; and I do de- Clare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to the letters of reference marked thereon, which form a part of this specification, and represent, in

Figure l, a side View of a device Well calculated to illustrate the spirit of my invention. Fig. 2 is a back view of the same device, both Views being shown in section for the purpose of better illustration.

In Fig. 1, A represents a heating-chamber, and B B are vertical flues passing through the same.

C is the fire-box, and D is the escape-fine for the heated air and gases.

0. a a a are sprocket-wheels mounted upon the shafts b b b b.

o 0 represent endless chains, which pass over the sprocket-wheels, said chains being provided with hooks for the purpose of attaching frames or other devices for supporting the work that is to be passed through the fines of the kiln. As willbe seen, the chains are calculated to pass through the fines from the top downward. Any well-known means may be employed to operate the chains-such as a crank attached to one of the shaftsand any suitable mechanism may be employed to stop and hold the work in the desired position. It is obvious that the fines may be of any desired shape or form, as square, round &c. I wish it also understood that more than one fire-box may be employed,if found desirable.

As will be seen by reference to the drawings, two chains are caused to operate in each flue, one on either side, as it affords a better means for attaching the work to be operated upon; but I would not have it understood that I limit myself to this way only, as it is obvious that a variety of ways may be employed with equally good results. The vertical fines pass through the heating-chamber and extend a sufficient distance above and below to accomplish the desired results.

The object of this invention is to produce a kiln in which difierent portions shall be subjected to and maintain difierent degrees of heat, and is designed more particularly for use in decorating glassware; but,'as will readily be seen, is equally applicable to many other purposes, such as japanning, baking pottery, &c.

The operation of the device is as follows: The work to be treated is introduced at the top of the flue by being attached to the chains and then lowered into the first section of the same or the portion which extends above the heating-chamber. As this portion of the fine is open to the atmosphere, it is obvious that it will contain a lower degree of heat than the portion which extends through the chamber below. In the first portion of the flue the work becomes gradually heated to a sufficiently-high temperature to be introduced into the baking portion or section, which passes throngh'the chamber, when it is lowered into this section, where it remains until it acquires the required amount of heat, when it is lowered into the annealing section or portion below the chamber, which, like the introduction-section, is open to the atmosphere, and as the hot air from the heating-chamber rises the only heat which finds its way into the lower section is that which is carried in by the heated work as it is lowered into this section of the flue, the bottom of which may be closed to prevent the cold air from reaching the Work until it is sufficiently cooled to prevent disastrous results when taken from the kiln. It will also readily be seen that as one lot of work is lowered from the flue another may be introduced into the introductionchamber, and thus the work go on continuously. It will readily be seen that a number of fines may be operated at the same time, or

by inserting dampers or partitions in the heat- 5 IOO nation, with a heating-chamber, a fire box or boxes, and a stack communicating with the chamber, of one or more uninterrupted vertical fines passing through the chamber and 15 extended above and below the same, forming a burning-passage, having its greatest temperature essentially at or near its center, and a continuous carrier adapted to pass entirely through said flue or flues, substantially as and 20 for the purpose set forth.

In testimony whereof I aifix my signature in presence of two witnesses PHILIP J. I-IANDEL.

Witnesses:

WILLIAM C. MUELLER, W ILBUR F. DAVIS. 

